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Two-hole ground state: Dichotomy in pairing symmetry
A single-hole ground state Ansatz for the two-dimensional tJ model has been recently
studied by the variational Monte Carlo (VMC) method. Such a doped hole behaves like a …
studied by the variational Monte Carlo (VMC) method. Such a doped hole behaves like a …
Sign structure of the model and its physical consequences
Understanding the doped Mott insulator is a central challenge in condensed matter physics.
In this work, we first explicitly identify a new sign structure in the tt′-J model on the square …
In this work, we first explicitly identify a new sign structure in the tt′-J model on the square …
Phase diagram of the square-lattice model for electron-doped cuprates
Q Chen, L Qiao, F Zhang, Z Zhu - Physical Review B, 2024 - APS
Motivated by significant discrepancies between experimental observations of electron-
doped cuprates and numerical results of the Hubbard and tJ models, we investigate the role …
doped cuprates and numerical results of the Hubbard and tJ models, we investigate the role …
Mottness, phase string, and high-T c superconductivity
JY Zhao, ZY Weng - Chinese Physics B, 2022 - iopscience.iop.org
It is a great discovery in physics of the twentieth century that the elementary particles in
nature are dictated by gauge forces, characterized by a nonintegrable phase factor that an …
nature are dictated by gauge forces, characterized by a nonintegrable phase factor that an …